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guanwang/app/composables/useUnsavedChanges.ts

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import type { Ref } from 'vue'
export function useUnsavedChanges<T>(source: Ref<T | undefined>) {
const dirty = ref(false)
let baseline = ''
function snapshot() {
baseline = JSON.stringify(source.value ?? null)
dirty.value = false
}
watch(source, (value) => {
if (!baseline) return
dirty.value = JSON.stringify(value ?? null) !== baseline
}, { deep: true })
function beforeUnload(event: BeforeUnloadEvent) {
if (!dirty.value) return
event.preventDefault()
event.returnValue = ''
}
onMounted(() => window.addEventListener('beforeunload', beforeUnload))
onBeforeUnmount(() => window.removeEventListener('beforeunload', beforeUnload))
onBeforeRouteLeave(() => !dirty.value || window.confirm('当前修改尚未保存,确定离开吗?'))
return { dirty, markClean: snapshot }
}
export function apiErrorMessage(error: any, fallback: string) {
const issue = error?.data?.data?.issues?.[0]
if (!issue) return error?.data?.statusMessage || fallback
const path = Array.isArray(issue.path) && issue.path.length ? `${issue.path.join('.')}` : ''
return `${path}${issue.message || fallback}`
}